Anyone who understands adrenal insufficiency and human physiology would not recommend fasting. Its a stress related disorder, most individuals with adrenal fatigue could not tolerate the stress involved.

Not to mention individuals with adrenal insufficiency often have lowered levels of an adrenal hormone called aldosterone, which means they have often have issues regulating electrolyte balance.

Very dangerous advice to recommend fasting of any type, let alone water fasting. Proceed with caution and seek professional help, if you can even make it a day water fasting you will likely notice you CRASH.